Event: IM Brown Shield

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Opponent Rating Result
William J Egan 1632 1 - 0
Nathan Madzia 1635 1 - 0
Ian Gaskin 1558 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1875 = (4825 + 400 * (2 - 0)) / 3)

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